Holographic recording medium and encoding/decoding method...

Details Holographic recording medium and encoding/decoding method... Holographic recording medium and encoding/decoding method...

2011-05-17

2011-05-17

Edun, Muhammad N (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S047210, C369S047270, C369S053290

Reexamination Certificate

active

07944795

ABSTRACT:
A holographic recoding medium is provided, having holographic pages. Each page has reference mark (RM) placement areas at fixed locations for placing RM patterns. The reference marks are used to calibrate data images of data areas each of which is enclosed by at least three RM regions. Hidden information of the medium is stored by an specific encoded pattern based on existence, types and arrangements of the RM marks.

REFERENCES:
patent: 2005/0018263 (2005-01-01), Pharris
patent: 2005/0250046 (2005-11-01), Aoki et al.
patent: 2008/0239922 (2008-10-01), Fujita et al.
patent: 2010/0232278 (2010-09-01), Ogasawara

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